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Matt Levine wrote (uh, yesterday?) that the Nasdaq 100 was adding it (not a full linear weighting....) right now to accommodate this scam.

• dbt00 7mo ago
  Yeah, the OEX is a more serious index for more serious people.
• dmoy 7mo ago
  Ok fair, I forgot that QQQ is as big as it is. Edit: wait, but QQQ is float adjusted? What are the biggest not-float-adjusted index funds?
  • lokar 7mo ago
    I don't know about the funds, but it's really about the index. Both for the index funds that use the index, and the active mutual funds and index funds benchmark to that index.
    • dmoy 7mo ago
      Why is it really about the index though, if the index fund doesn't track that public index? If the index fund is tracking some proxy that is float weighted, isn't that what matters? At least when it comes to people's money.
      • lokar 7mo ago
        Index funds track an index, thus the name
        • deleted 7mo ago
          [deleted]
        • dmoy 7mo ago
          Yes but they don't track the literal index that we the public see. They track a float weighted approximation of it (Typically - I thought QQQ did based on your earlier comment, but it also is float weighted)